Appucation



W. E. SARGENT. DIE SlNKlNG MACHINE. APPLICATION FILED JULY 24. um.

Patented Sept. 23, 1919.

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DIE SINKING MACHINE.

APPLICATION FILED 1ULY24. I917.

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APPLICATION FILED JULY 24. I911.

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APPLICATION FILED JuLY24. 1911.

Patented Sept. 23, 1919.

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APPLICATION FILED JULY.24. I917.

Patented Sept. 23, 1919.

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APPLICATION FILED JULY 24. 1911.

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APPLICATION FILED JULY 24.1911.

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W. E. SARGENT.

DI-E SI-NKING MACHINE.

APPLICATION FILED JULY 24,]917. 1,317,03 PatenmdSept. 23, 1919.

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W. E. SARGENT.

DIE SINKING MACHINE.

APPLICATION FILED JULY 24.:911.

1 ,3 17,038. Patented Sept. 23, 1919.

I8 SHEETS-SHEEIT l2.

W. E. SARGENT.

DIE SIYNKLNG MACHINE.

APPLICATION FILED IULY 24. I917.

1 ,3 1 7,038 Patented Sept. 23, 1919.

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DIE SINKING MACHINE.

APPLICATION FILED JULY 24.12am.

Patented Sept. 23, 1919.

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DIE SINKING MACHINE.

APPLICATION FILED JULY 24,1911.

Patented Sept. 23, 1919.

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DIE SINKING MACHINE.

APPLICATION FILED JULY 24. l9l7.

Patented Sept. 23, 1919.

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APPLICATION man JULY 24.19I1.

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DIE SINKING MACHINE.

APPLICATION FILED JULY 24. MN].

Patented Spt. 23, 1919.

I8 SHEETS-SHEET 18- WALTER E. SARGENT, OF MONTREAL, QUEBEC, CANADA.

DIE-SINKING MACHINE.

Specification of Letters Patent.

Patented Sept. 23, 1919.

Application filed July 24, 1917. Serial No. 182,450.

To all whom it may concern:

Be it known that I, WALTER E. SARGENT, a citizen of the United States, and resident of Montreal, in the county of Hochelaga, Province of Quebec, Dominion of Canada, have invented a new and useful Improvement in Die-Sinking Machines, of which the following is a specification.

This invention relates to a machine for sinking or engraving dies for the purpose of reproducing the same from a pattern or templet, either in cameo or intaglio, the said machine being automatic, accurate, and expeditious in operation.

One object is to provide a machine of this character in which the construction is such that the engraving tool may be caused to traverse a perpendlcular surface and thereby enable the production of dies having vertical walls, as distinguished from walls at an angle of substantially ten degrees to the vertical which has been the closest approximation to vertical walls obtainable in prior machines.

Another object consists in providing a machine of this character which comprises means for cutting either right or left hand dies from a single given pattern, which dies may be the full size of the pattern.

A further object consists in providing a machine of this character in which the work holder is so mounted as to be adjustable in various directions for the purpose of facilitating angular cuts by the working tool.

A still further object consists in providing a machine of this character which efi'ec tively completes the die sinking operation so as to practically eliminate the necessity or desirability of hand work upon the dies which have been cut thereby.

A still further object consists in providing certain improvements in the form, construction and arrangement of the several parts whereby the above named and other advantages may be efi'ectively attained.

A practical embodiment of my invention is represented in the accompanying drawings in which,

Figure 1 represents a front elevation of the whole machine with the motor and belts for operating the tools removed.

Fig. 2 represents a side elevation of the same.

Fig. 3 represents a top plan view of the same.

Fig. 4 represents an enlarged detail side elevation of the base and adjacent parts.

Fig. 5 represents an enlarged detail front elevation of the structure shown in Fig. 4, parts being broken away to expose those behind.

Fig. 6 represents a detail top plan view, partly in section, of the parts shown in Fig. 5.

Fig. 7 represents a detail vertical section on a still larger scale, taken in the plane of the line VII-VII of Fig. 6, looking in the direction of the arrows.

Fig. 8 represents a similar view taken in the plane of the line VIII-VIII of Fig. 6, looking in the direction of the arrows.

Fig. 9 represents a detail section taken in the plane of the line IX-IX of Fig. 6, looking in the direction of the arrows.

Fig. 10 represents an enlarged detail section illustrating the means for connecting the work and pattern holders.

Fig. 11 represents an enlarged detail section showing the change speed mechanism which constitutes part of the drive of the machine.

Fig. 12 represents an enlarged detail section showing the reversing mechanism which forms part of the drive of the machine.

Fig. 13 represents a detail end elevation of the parts shown in Fig. 12.

Fig. 14.- represents an enlarged detail transverse section through the clutch and adjacent parts of the reversing mechanism shown in Fig. 12.

Fig. 15 represents an enlarged detail 1011- gitudinal section through the said clutch mechanism.

Figs. 16, 17 and 18 represent detail side elevations of the said clutch mechanism in different positions.

Figs. 19, 20 and 21 represent enlarged detail elevations, partly in section, showing the clutch operating lever and associated mechanism in different positions.

Fig. 22 represents an enlarged detail longitudinal section showing the means for reciprocating the main bed and clutch for controlling the same.

Figs. 23 and 24; represent enlarged detail side views, partly in section, showing the means for connecting and disconnecting the screw which drives the pattern support.

Fig. represents an enlarged detail section through the means for driving the screws which actuate the work and pattern holders.

Fig. 26 represents'an enlarged detail sec-.

tion through a friction clutch which forms part of the feeding mechanism of the machine.

Figs. 27, 28 and 29 represent enlarged detail elevations of a link connection which forms part of the feeding mechanism of the machine, the same being shown in different positions in the three views.

Figs. 30, 31 and 32 represent enlarged detail elevations, partly in section, of the segmental gear and pawl arrangement which imparts motion to the screws thatactuate th work and pattern holders.

Fig. 33 represents a top plan view of the frame which carries the tracer and cutting I tool.

Fig. 34 represents an enlarged detail side elevation, partly in section, of the tool carrying frame and associated parts.

' pivot mechanism of the tool carrying frame.

Fig. 37 represents an enlarged detail section through the said pivot mechanism and associated parts.

Fig. 38 represents an enlarged detail section taken in the plane of the line XXXVIIL- XXXVIII of Fig. 4, looking in the directionv of the arrows. v

Figs. 39 to 46 inclusive, represent diagrammatic views showing various positions of the cutting tool, its supporting frame, and the work' during the operation of the machine.

Fig. 47 Y represents a'detail side elevation,bn the scale of Fig. 2, showing a modified form of work holding supports and tool carrying frame, and

Fig. 48 represents a detail top plan view of this form of tool carrying frame. 7

Referring to the preferred form shown in .Figs. 1- to'46 inclusive, the machine comprises a base portion which takes the form. of a hollow casing 1, (see Figs. land 2). This casing may consist of a convenient metallic construction, such as cast iron, and its upper surface is provided with a pair of transversely extending grooves 2, 3, (see Figs. 2, 3 and 4) whereby the said upper surface of the base has three laterally extending and upwardly projecting rails or tracks 4,5, 6, upon which a main traveling bed 7 is designed to rest and have a reciprocatory' movement laterally across the base 1. The bed 7 has downwardly projecting guides 8, 9, which abut opposite sides of the track 6, and it is also provided with similarly depending front and back guides 10, 11, which engage the tracks 4, 5, and carry gibs 12, 13, for holding the bed 7 against vertical movement away from the base 1.

As above noted, the main traveling bed 7 is calculated to reciprocate across the machine during the operation thereof. I will now proceed to describe the means for imparting this motion.

An electric motor 14 (see Fig. 2), is secured to the main stanchion 15 which is bolted to and projects upwardly from the base 1, at therear of the latter. The driven gear 16 of this motor is in mesh with a gear 17 fixed upon a shaft 18 (see Fig. 11) that is journaled in a gear casing 19 which is secured to the side of the stanchion 15 in front of the motor 14.

The shaft 18 has a pair of gears 20, 21, fixed against rotation but slidably mounted thereon,'which gears are designed to alternately mesh with gears 22, 23, respectively, fixed on a shaft 24 that is mounted in the casing '19 below the shaft 18. This shaft 24 also carries a set of four gears 25, which are fixed thereto. The gears 25 vary in size and are adapted for driving engagement with a, gear 26, which is slidably mounted but fixed against rotation upon the shaft 27 journaled in the casing 19 near the bottom thereof, through the intermediation of a floating gear 27 that is carried by the brackets 28 which are mounted to rock on the shaft 27 The brackets 28. may beprovided with a suitable handle projecting exteriorly of the casing for the manual operation of the same, and thus it will be clear that the gear 26 may be slid along the shaft 27 and the floating gear 27*, carried by. the brackets 28, caused to bring the said gear 26 into operative engagement with anyone of the r'our gears 25, for changing the speed of rotation of the shaft 27.

The shaft 27 projects forwardly from the casing 19, into the interior of the base 1 where its front end is journaled in a bracket 29-fixed upon a housing 30 located within the said base. This front end of the shaft 27 carries a Worm 31 that meshes with a worm wheel32 which is fixed (upon the end of a shaft 33 rotatably mounted at the lower part of the housing 30 (see Fig. 12). For the purpose of lubrication, the lower part of the worm wheel 32 enters an oil reservoir 34 that is bolted to the housing 30.

The shaft 33 carries a gear 35 which meshes with a gear 36 on'a shaft 37; and it also carries a gear 38 which engages an idler gear 39, which latter in turn meshes with 

